Pipeline welding detection crawler based on high-frequency X-ray machine

Abstract

The pipeline welding detection crawler based on the high-frequency X-ray machine comprises an integration box and a supporting plate, the supporting plate is installed on the inner wall of the integration box, a movable shaft is movably installed in the center of the supporting plate, a gear is arranged on the surface of the movable shaft in a sleeved mode, and the gear is connected with the integration box. Sliding rails are mounted on the outer walls of the supporting plates on the two sides of the movable shaft, sliding blocks are slidably mounted on the surfaces of the sliding rails, racks are mounted on the side walls of the sliding blocks, the gears are meshed with the racks, first electric push rods are mounted on the side walls of the supporting plates, and first push arms are mounted at the output ends of the first electric push rods. According to the utility model, convenient linkage supporting and abutting against the inner wall of the pipeline for crawling and convenient circumferential rotation for detecting the inner wall of the pipeline are realized, the detection head can be conveniently moved, stored and protected, the detection range is increased, and the convenience of storage and protection and the flexibility of detection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection crawlers, in particular to a pipeline welding detection crawler based on a high-frequency X-ray machine. Background Art

[0002] Welding quality inspection refers to the inspection of welding results, with the aim of ensuring the integrity, reliability, safety and usability of the welded structure. In addition to the requirements for welding technology and welding process, welding quality inspection is also an important part of welded structure quality management. After welding, the welding position of the pipeline needs to be inspected. The traditional method is mostly manual visual inspection, which is inefficient. In order to better detect the pipeline welding position, a pipeline welding inspection crawler based on a high-frequency X-ray machine is proposed.

[0003] For example, a pipeline welding inspection crawler based on a high-frequency X-ray machine disclosed in the authorization announcement number CN208488397U includes a vehicle body with a traveling roller and an X-ray tube head connected to the vehicle body. A magnetic instruction device support frame is provided at the front end of the vehicle body, a magnetic instruction receiving device is provided at the top end of the magnetic instruction device support frame, and the magnetic instruction receiving device is matched with a magnetic instruction transmitting device arranged at intervals on the outer wall of the pipeline. A transverse bracket is arranged horizontally in the middle of the magnetic instruction device support frame, and the X-ray tube head is arranged at the front end of the transverse bracket. A traveling stabilization frame is provided at the front end of the X-ray tube head, and the traveling stabilization frame is arranged vertically and has auxiliary pulleys at both ends that contact the inner wall of the pipeline. The top array of the vehicle body has a heat dissipation fin with a vent hole. The X-ray tube head is a high-frequency X-ray tube head, and the high-voltage generator of the high-frequency X-ray tube head adopts a metal ceramic tube.

[0004] Although it has achieved the integration of high-frequency X-rays into the crawler, improving the quality of detection imaging, and being able to respond to a variety of command control methods, the crawler's heat dissipation effect is improved and the travel stability is enhanced;

[0005] However, it does not solve the problem that the existing detection crawler is not conducive to convenient linkage support to crawl against the inner wall of the pipeline and convenient circular rotation to detect the inner wall of the pipeline when in use, and is not conducive to the mobile storage and protection of the detection head, which affects the convenience of storage and protection and the flexibility of detection. Utility Model Content

[0006] The purpose of the present utility model is to provide a pipeline welding inspection crawler based on a high-frequency X-ray machine to solve the problem in the above-mentioned background technology that the inspection crawler is not convenient for convenient linkage support to crawl against the inner wall of the pipeline and convenient circular rotation to inspect the inner wall of the pipeline, which is not conducive to the mobile storage and protection of the inspection head, affecting the convenience of storage and protection and the flexibility of inspection.

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a pipeline welding inspection crawler based on a high-frequency X-ray machine, comprising an integrated box and a support plate, a support plate installed on the inner wall of the integrated box, a movable shaft movably installed at the center position of the support plate, a gear set on the surface of the movable shaft, slide rails installed on the outer walls of the support plates on both sides of the movable shaft, sliders slidably installed on the surfaces of the slide rails, racks installed on the side walls of the sliders, and the gears and racks mesh with each other, a first electric push rod installed on the side wall of the support plate, a first push arm installed on the output end of the first electric push rod, and the first push arm is connected to a group of sliders, a rotating disk installed on the end of the movable shaft away from the support plate, four groups of high-frequency X-ray detection heads with equal intervals are installed on the side walls of the rotating disk, and an integrated frame is provided on the outside of the integrated box.

[0008] Preferably, two groups of servo motors are installed on the inner wall of the integrated frame, and the output ends of the servo motors are both installed with threaded rods, and the threaded rods are movably connected to the integrated frame.

[0009] Preferably, the surfaces of the threaded rods are all covered with threaded sleeves, and the threaded sleeves are threadedly connected to the threaded rods, and the threaded sleeves are slidingly connected to the integrated frame, and the threaded sleeves are connected to the integrated box.

[0010] Preferably, three groups of bearing frames are installed at equal intervals on the outer wall of the integrated frame, and bearing blocks are installed on the top of each bearing frame.

[0011] Preferably, rotating frames are symmetrically installed inside the supporting frames, and hinge shafts are installed at one end of the rotating frames close to the supporting frames, and the rotating frames are movably connected to the supporting frames through the hinge shafts.

[0012] Preferably, a travel wheel is movably mounted on one end of the rotating frame away from the hinge shaft, a travel motor is mounted on the side wall of the rotating frame, and the output end of the travel motor is connected to the travel wheel.

[0013] Preferably, second electric push rods are symmetrically and movably mounted on the side walls of the bearing block, and second push arms are mounted on the output ends of the second electric push rods.

[0014] Preferably, a connecting arm is installed at one end of the second push arm away from the second electric push rod, a pin is installed at one end of the connecting arm close to the second push arm, and the connecting arm is movably connected to the second push arm through the pin, and a connecting shaft is installed at one end of the connecting arm close to the rotating frame, and the connecting arm is fixedly connected to the connecting shaft.

[0015] Compared with the existing technology, the beneficial effects of the present invention are: the detection crawler not only realizes convenient linkage support and crawling against the inner wall of the pipeline and convenient circular rotation to detect the inner wall of the pipeline, but also facilitates the mobile storage and protection of the detection head, increases the detection range, and improves the convenience of storage and protection and the flexibility of detection;

[0016] (1) The second push arm is driven to move by the second electric push rod, and the second push arm is driven to rotate by the connecting arm through the pin shaft, and the connecting arm is driven to rotate the rotating frame with the hinge shaft as the axis through the connecting shaft, and the rotating frame is driven to rotate the walking wheel to make the walking wheel rotate and contact the inner wall of the pipeline. Under the joint action of multiple sets of walking wheels, the device is supported inside the pipeline, and the walking motor drives the walking wheel to rotate, and the walking wheel drives the entire equipment to move inside the pipeline. After moving to the detection position, the servo motor drives the threaded rod to rotate, and the threaded rod drives the threaded sleeve to move, and the threaded sleeve drives the integrated box to move, and the integrated box drives the rotating disk and high-frequency X through the movable shaft. The ray detection head moves to move the high-frequency X-ray detection head to the outside of the servo motor, and the high-frequency X-ray detection head detects the detection position. The external high-frequency X-ray machine sends rays through the high-frequency X-ray detection head, and the detection data is transmitted to the external computer through the data line for analysis and calculation. When the detection is completed, the servo motor is turned on in the reverse direction to make the rotating disk and the high-frequency X-ray detection head return to the inside of the integrated frame. The integrated frame protects the high-frequency X-ray detection head, realizing convenient linkage support and crawling against the inner wall of the pipeline, facilitating the movement, storage and protection of the detection head, and improving the convenience of storage and protection;

[0017] (2) The first push arm is driven to move by the first electric push rod, and the first push arm drives a group of sliders to slide on the surface of a group of slide rails, and the sliders drive a group of racks to move, and the racks drive the gears to rotate, and another group of racks provide limit support for the gears, and the gears drive the movable shaft to rotate, and the movable shaft drives the rotating disk and the high-frequency X-ray detection head to rotate, and the high-frequency X-ray detection head performs circular rotation detection on the inner wall of the pipeline, thereby increasing the detection range, realizing convenient circular rotation detection of the inner wall of the pipeline, increasing the detection range, and improving the detection flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the integrated frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the front cross-sectional structure of the integrated frame of the present utility model;

[0021] Figure 4This is a schematic diagram of the three-dimensional structure of the support plate of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the load-bearing frame of the present invention.

[0023] In the figure: 1. integrated frame; 2. load-bearing frame; 3. rotating disk; 4. threaded sleeve; 5. threaded rod; 6. servo motor; 7. integrated box; 8. support plate; 9. movable shaft; 10. slide rail; 11. slider; 12. first push arm; 13. first electric push rod; 14. rack; 15. gear; 16. hinge shaft; 17. rotating frame; 18. travel motor; 19. travel wheel; 20. connecting shaft; 21. connecting arm; 22. pin shaft; 23. second push arm; 24. second electric push rod; 25. carrying block; 26. high-frequency X-ray detection head. DETAILED DESCRIPTION

[0024] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0025] See also Figure 1-5 , the utility model provides an embodiment: a pipeline welding inspection crawler based on a high-frequency X-ray machine, comprising an integrated box 7 and a support plate 8, the inner wall of the integrated box 7 is mounted with a support plate 8, a movable shaft 9 is movably mounted at the center position of the support plate 8, the surface of the movable shaft 9 is covered with a gear 15, and slide rails 10 are mounted on the outer walls of the support plate 8 on both sides of the movable shaft 9, and sliders 11 are slidably mounted on the surfaces of the slide rails 10, and racks 14 are mounted on the side walls of the sliders 11, and the gears 15 and the racks 14 are meshed with each other, a first electric push rod 13 is mounted on the side wall of the support plate 8, the first electric push rod 13 plays a role of power drive, a first push arm 12 is mounted on the output end of the first electric push rod 13, and the first push arm 12 is connected to a group of sliders 11, a rotating disk 3 is mounted on the end of the movable shaft 9 away from the support plate 8, and four groups of high-frequency X-ray detection heads 26 with equal spacing are mounted on the side walls of the rotating disk 3, and an integrated frame 1 is provided on the outside of the integrated box 7;

[0026] By connecting the device to an external processing computer through a data cable, and at the same time connecting the device to an external controller and an external circuit, the device is placed inside the pipeline, the second electric push rod 24 is turned on, and the second electric push rod 24 drives the second push arm 23 to move, and the second push arm 23 drives the connecting arm 21 to rotate through the pin shaft 22, and the connecting arm 21 drives the rotating frame 17 to rotate with the hinge shaft 16 as the axis through the connecting shaft 20, and the rotating frame 17 drives the walking wheel 19 to rotate, so that the walking wheel 19 rotates and contacts the inner wall of the pipeline. Under the joint action of multiple groups of walking wheels 19, the device is supported inside the pipeline, and then the walking motor 18 is turned on, and the walking motor 18 drives the walking wheel 19 to rotate. Under the friction between the walking wheel 19 and the inner wall of the pipeline, the walking wheel 19 drives the entire device to move inside the pipeline. After walking to the detection position, the servo motor 6 is turned on, and the servo motor 6 drives the threaded rod 5 to rotate. 5 is threadedly connected to the threaded sleeve 4, and under the sliding cooperation between the threaded sleeve 4 and the integrated frame 1, the threaded rod 5 drives the threaded sleeve 4 to move, and the threaded sleeve 4 drives the integrated box 7 to move, and the integrated box 7 drives the rotating disk 3 and the high-frequency X-ray detection head 26 to move through the movable shaft 9, so that the high-frequency X-ray detection head 26 moves to the outside of the servo motor 6, and the high-frequency X-ray detection head 26 detects the detection position. The external high-frequency X-ray machine sends rays through the high-frequency X-ray detection head 26, and the detection data is transmitted to the external computer through the data line for analysis and calculation. When the detection is completed, the servo motor 6 is turned on in the reverse direction to make the rotating disk 3 and the high-frequency X-ray detection head 26 return to the inside of the integrated frame 1, and the integrated frame 1 protects the high-frequency X-ray detection head 26, thereby realizing convenient linkage support to crawl against the inner wall of the pipeline, facilitating the movement, storage and protection of the detection head, and improving the convenience of storage and protection.

[0027] Two sets of servo motors 6 are installed on the inner wall of the integrated frame 1. The servo motors 6 play the role of power drive. The output ends of the servo motors 6 are both installed with threaded rods 5, and the threaded rods 5 are movably connected to the integrated frame 1.

[0028] The surface of the threaded rod 5 is covered with a threaded sleeve 4, and the threaded sleeve 4 is threadedly connected to the threaded rod 5, and the threaded sleeve 4 is slidably connected to the integrated frame 1, and the threaded sleeve 4 is connected to the integrated box 7. Three groups of supporting frames 2 are installed on the outer wall of the integrated frame 1 at equal intervals, and the top of each supporting frame 2 is installed with a supporting block 25;

[0029] The interior of the supporting frame 2 is symmetrically mounted with rotating frames 17. The ends of the rotating frames 17 close to the supporting frame 2 are each mounted with hinge shafts 16. The rotating frames 17 are movably connected to the supporting frame 2 via the hinge shafts 16.

[0030] A travel wheel 19 is movably mounted on one end of the rotating frame 17 away from the hinge shaft 16, and a travel motor 18 is mounted on the side wall of the rotating frame 17. The travel motor 18 plays a role of power drive, and the output end of the travel motor 18 is connected to the travel wheel 19;

[0031] The side walls of the bearing block 25 are symmetrically and movably mounted with second electric push rods 24, which play a role of power drive. The output ends of the second electric push rods 24 are all mounted with second push arms 23;

[0032] A connecting arm 21 is installed at one end of the second push arm 23 away from the second electric push rod 24. A pin 22 is installed at one end of the connecting arm 21 close to the second push arm 23. The connecting arm 21 is movably connected to the second push arm 23 via the pin 22. A connecting shaft 20 is installed at one end of the connecting arm 21 close to the rotating frame 17. The connecting arm 21 is fixedly connected to the connecting shaft 20.

[0033] When it is necessary to detect other positions, the first electric push rod 13 is opened, and the first electric push rod 13 drives the first push arm 12 to move, and the first push arm 12 drives a group of sliders 11 to slide on the surface of a group of slide rails 10, and the sliders 11 drive a group of racks 14 to move. Under the mutual engagement of the racks 14 and the gears 15, the racks 14 drive the gears 15 to rotate, and another group of racks 14 provides limiting support for the gears 15, and the gears 15 drive the movable shaft 9 to rotate, and the movable shaft 9 drives the rotating disk 3 and the high-frequency X-ray detection head 26 to rotate, and the high-frequency X-ray detection head 26 is used to perform circular rotation detection on the inner wall of the pipeline, thereby increasing the detection range, realizing convenient circular rotation detection of the inner wall of the pipeline, increasing the detection range, and improving the detection flexibility.

[0034] Working principle: First, the second electric push rod 24 drives the second push arm 23 to move, and the second push arm 23 drives the connecting arm 21 to rotate through the pin shaft 22, and the connecting arm 21 drives the rotating frame 17 to rotate with the hinge shaft 16 as the axis through the connecting shaft 20, and the rotating frame 17 drives the walking wheel 19 to rotate, so that the walking wheel 19 rotates and contacts the inner wall of the pipe. Under the joint action of multiple sets of walking wheels 19, the device is supported inside the pipe, and the walking motor 18 drives the walking wheel 19 to rotate, and the walking wheel 19 drives the entire equipment to move inside the pipe. After walking to the detection position, the servo motor 6 drives the threaded rod 5 to rotate, and the threaded rod 5 drives the threaded sleeve 4 to move, and the threaded sleeve 4 drives the integrated box 7 to move, and the integrated box 7 drives the rotating disk 3 and the high-frequency X-ray detection head 26 to move through the movable shaft 9, so that the high-frequency X-ray detection head 26 moves to the outside of the servo motor 6, and the high-frequency X-ray detection head 26 detects the detection position. The external high-frequency X-ray machine passes The high-frequency X-ray detector 26 sends rays, and the detection data is transmitted to an external computer through a data line for analysis and calculation. When the detection is completed, the servo motor 6 is turned on in reverse to make the rotating disk 3 and the high-frequency X-ray detector 26 return to the inside of the integrated frame 1, and the integrated frame 1 protects the high-frequency X-ray detector 26. When it is necessary to detect other positions, the first electric push rod 13 drives the first push arm 12 to move, and the first push arm 12 drives a group of sliders 11 to slide on the surface of a group of slide rails 10, and the slider 11 drives a group of racks 14 to move, and the rack 14 drives the gear 15 to rotate. Another group of racks 14 provides limiting support for the gear 15, and the gear 15 drives the movable shaft 9 to rotate, and the movable shaft 9 drives the rotating disk 3 and the high-frequency X-ray detector 26 to rotate, and the high-frequency X-ray detector 26 performs circular rotation detection on the inner wall of the pipeline to complete the use of the pipeline welding detection crawler based on the high-frequency X-ray machine.

[0035] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A pipeline welding inspection crawler based on a high-frequency X-ray machine, comprising an integrated box (7) and a support plate (8), characterized in that: A support plate (8) is installed on the inner wall of the integrated box (7), a movable shaft (9) is movably installed at the center of the support plate (8), a gear (15) is mounted on the surface of the movable shaft (9), and slide rails (10) are installed on the outer walls of the support plates (8) on both sides of the movable shaft (9), a slider (11) is slidably installed on the surface of the slide rails (10), and a rack (14) is installed on the side wall of the slider (11), and the gear (15) and the rack (14) are mutually rotatable. The support plate (8) is meshed, a first electric push rod (13) is installed on the side wall of the support plate (8), a first push arm (12) is installed on the output end of the first electric push rod (13), and the first push arm (12) is connected to a group of sliders (11), a rotating disk (3) is installed on the end of the movable shaft (9) away from the support plate (8), four groups of high-frequency X-ray detection heads (26) with equal spacing are installed on the side wall of the rotating disk (3), and an integrated frame (1) is provided on the outside of the integrated box (7).

2. The pipeline welding inspection crawler based on a high-frequency X-ray machine according to claim 1, characterized in that: Two groups of servo motors (6) are installed on the inner wall of the integrated frame (1), and the output ends of the servo motors (6) are both installed with threaded rods (5), and the threaded rods (5) are movably connected to the integrated frame (1).

3. The pipeline welding inspection crawler based on a high-frequency X-ray machine according to claim 2, characterized in that: The surface of the threaded rod (5) is covered with a threaded sleeve (4), and the threaded sleeve (4) is threadedly connected to the threaded rod (5), and the threaded sleeve (4) is slidably connected to the integrated frame (1), and the threaded sleeve (4) is connected to the integrated box (7).

4. The pipeline welding inspection crawler based on a high-frequency X-ray machine according to claim 1, characterized in that: Three groups of bearing frames (2) are installed at equal intervals on the outer wall of the integrated frame (1), and bearing blocks (25) are installed on the top ends of the bearing frames (2).

5. The pipeline welding inspection crawler based on a high-frequency X-ray machine according to claim 4, characterized in that: A rotating frame (17) is symmetrically installed inside the supporting frame (2), and a hinge shaft (16) is installed at one end of the rotating frame (17) close to the supporting frame (2), and the rotating frame (17) is movably connected to the supporting frame (2) through the hinge shaft (16).

6. The pipeline welding inspection crawler based on a high-frequency X-ray machine according to claim 5, characterized in that: A travel wheel (19) is movably mounted on one end of the rotating frame (17) away from the hinge shaft (16), a travel motor (18) is mounted on the side wall of the rotating frame (17), and an output end of the travel motor (18) is connected to the travel wheel (19).

7. The pipeline welding inspection crawler based on a high-frequency X-ray machine according to claim 4, characterized in that: Second electric push rods (24) are symmetrically and movably mounted on the side walls of the bearing block (25), and second push arms (23) are mounted on the output ends of the second electric push rods (24).

8. The pipeline welding inspection crawler based on a high-frequency X-ray machine according to claim 7, characterized in that: The second push arm (23) is provided with a connecting arm (21) at one end away from the second electric push rod (24), and the connecting arm (21) is provided with a pin shaft (22) at one end close to the second push arm (23), and the connecting arm (21) is movably connected to the second push arm (23) through the pin shaft (22), and the connecting arm (21) is provided with a connecting shaft (20) at one end close to the rotating frame (17), and the connecting arm (21) is fixedly connected to the connecting shaft (20).

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